Digitised from the catalogue curve at standard air (20 °C, 101.3 kPa, 1.2 kg/m³); one curve per voltage / speed grade. The system resistance curve depends on the actual ductwork — confirm the operating point on site. Need an engineer to verify the duty point? Contact us or add the model to your RFQ and note the duty point.
- Frame size175 mm
- Max airflow183.34 m³/h
- Max static pressure108.55 Pa
- Voltage100-240 V
- Speed2,400 rpm
- Noise45 dB(A)
LWAE17251SL-03 EC Cooling Fan 175 mm
175 mm | EC | Max airflow 183.34 m³/h | Max static pressure 108.55 Pa | 45 dB(A)
- Factory direct
- OEM / ODM
- Samples in 1–3 days
- Production 15–30 days
- 18-month warranty
- CE · ETL · RoHS

Need a non-standard size or another format? Ask an engineer or search the download center.
LWAE17251SL-03 is a LONGWELL EC Cooling Fan from the EC Cooling Fans range, frame size 175 mm, rated 100-240 V EC, maximum airflow 183.34 m³/h, maximum static pressure 108.55 Pa, noise 45 dB(A). The EC motor integrates the drive electronics: stepless speed control by 0–10 V or PWM signal, speed feedback and high efficiency at part load.
Technical data
| Model | LWAE17251SL-03 |
|---|---|
| Series | LWAE17251 |
| Motor type | EC |
| Phase | 1-phase |
| Rated voltage | 100-240 V |
| Current | 0.1 A |
| Speed | 2,400 rpm |
| Max. airflow | 183.34 m³/h |
| Max. static pressure | 108.55 Pa |
| Noise | 45 dB(A) |
| Frame size | 175 mm |
| Dimensions | 175x51mm |
Typical applications
- Power supplies and inverters
- Telecom and server cabinets
- Battery packs and EV chargers
- Medical and laboratory equipment
Series LWAE17251: models in the same series share the impeller and motor platform and differ in speed grade, voltage or lead-out / terminal-box configuration — compare them in the table below or ask for the best fit at your duty point.
Nameplate values: maximum airflow is measured at zero static pressure and maximum static pressure at zero airflow; the two never occur together. Confirm the operating point on the performance curve. Final selection is subject to the duty point (airflow / static pressure / voltage / control mode) and project verification.
Alternatives with the same frame size (175 mm · EC)
Same impeller, different speed grade, power or wiring. Step up for more airflow, step down for lower noise.
| Model | Max airflow | Max static pressure | Speed | Power | Noise | Voltage | |
|---|---|---|---|---|---|---|---|
| LWAE17251SL-03 this model | 183.34 m³/h | 108.55 Pa | 2,400 rpm | — | 45 dB(A) | 100-240 V | |
| LWFE3G175-072PS-01 | 535.6 m³/h | 453.2 Pa | 2,800 rpm | 55 W | 65 dB(A) | 230 V | View |
| LWBE3G175-072NU-16 | 535.6 m³/h | 453.2 Pa | 2,800 rpm | 55 W | 65 dB(A) | 115 V | View |
| LWFE3G175-072PS-05 | 700.4 m³/h | 875.5 Pa | 4,800 rpm | 155 W | 75 dB(A) | 230 V | View |
| LWFE3G175-072PS-03 | 700.4 m³/h | 803.4 Pa | 4,400 rpm | 115 W | 74 dB(A) | 230 V | View |
| LWBE3G175-072NU-18 | 700.4 m³/h | 803.4 Pa | 4,400 rpm | 115 W | 74 dB(A) | 115 V | View |
| LWBE3G175-072NS-09 | 700.4 m³/h | 875.5 Pa | 4,800 rpm | 155 W | 75 dB(A) | 230 V | View |
| LWBE3G175-072NS-08 | 700.4 m³/h | 803.4 Pa | 4,400 rpm | 115 W | 74 dB(A) | 230 V | View |
| LWFE3G175-072PS-02 | 741.6 m³/h | 535.6 Pa | 3,300 rpm | 85 W | 72 dB(A) | 230 V | View |
| LWBE3G175-072NU-17 | 741.6 m³/h | 535.6 Pa | 3,300 rpm | 85 W | 72 dB(A) | 115 V | View |
| LWFE3G175-072PS-04 | 911.55 m³/h | 875.5 Pa | 4,760 rpm | 170 W | 71 dB(A) | 230 V | View |
| LWBE3G175-072NU-19 | 911.55 m³/h | 875.5 Pa | 4,760 rpm | 170 W | 71 dB(A) | 115 V | View |
| LWBE3G175-072NS-07 | 911.55 m³/h | 875.5 Pa | 4,760 rpm | 170 W | 71 dB(A) | 230 V | View |
| LWBE3G175-072PS-10 | 924 m³/h | 893 Pa | 5,020 rpm | 132 W | 69 dB(A) | 230 V | View |
| LWBE3G175-072NS-10 | 924 m³/h | 893 Pa | 5,020 rpm | 132 W | 69 dB(A) | 230 V | View |
Not sure which one? Send us the duty point (airflow / static pressure / noise limit) — use the selector or ask an engineer.
Other models in the LWAE17251 seriesSame impeller, different speed grade or wiring
Adjacent sizesOne size up when airflow is short, one size down when it is too much
LWAD17251MM-04172 mm · 373.8 m³/h · 151 Pa · DCadjacent size
LWAD17251LL-05172 mm · 311.4 m³/h · 105 Pa · DCadjacent size
LWAD17251MX-01172 mm · 560.4 m³/h · 340 Pa · DCadjacent size
LWAD17251MX-02172 mm · 498 m³/h · 269 Pa · DCadjacent size
LWAD17251MH-03172 mm · 436.2 m³/h · 206 Pa · DCadjacent size
LWAD17251HX-01172 mm · 560.4 m³/h · 340 Pa · DCadjacent sizeAlternatives at a similar dutySimilar airflow, different construction or motor platform
LWCA-45180SN-07Ø45 mm · 184 m³/h · 26 Pa · ACsimilar duty
LWAD8038LX-0180 mm · 184.8 m³/h · 303 Pa · DCsimilar duty
LWAD8038MX-0180 mm · 184.8 m³/h · 303 Pa · DCsimilar duty
LWAD8038HX-0180 mm · 184.8 m³/h · 303 Pa · DCsimilar duty
LWCA-30718SN-06Ø30 mm · 185 m³/h · 14 Pa · ACsimilar duty
LWCD-30718MN-06Ø30 mm · 185 m³/h · 19 Pa · DCsimilar dutySee all Cooling Fans & Blowers · select by duty point






